<template>
	<view class="my-settle-container">
		<!-- 结算组件 -->
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio color="#C00000" :checked="isFullCheck" /><text>全选</text>
		</label>
		<!-- 合计 -->
		<view class="amount-box">
			合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
		</view>
		<!-- 结算按钮 -->
		<view class="btn-settle" @click="settlement">
			结算{{checkedCount}}
		</view>
	</view>
</template>

<script>
	import {
		mapGetters,
		mapMutations,
		mapState
	} from 'vuex'
	export default {
		name: "my-settle",
		data() {
			return {
				//倒计时的秒数
				seconds: 3,
				//定时器的id
				timer: null
			};
		},
		computed: {
			...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
			...mapGetters('m_user', ['addstr']),
			...mapState('m_user', ['token']),
			...mapState('m_cart', ['cart']),
			isFullCheck() {
				return this.total === this.checkedCount
			}
		},
		methods: {
			...mapMutations('m_cart', ['updateAllGoodsState']),
			...mapMutations('m_user', ['updateRedirectInfo']),
			changeAllState() {
				this.updateAllGoodsState(!this.isFullCheck)
			},
			//用户点击了结算按钮
			settlement() {
				if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品')
				if (!this.addstr) return uni.$showMsg('请选择收货地址')
				if (!this.token) return this.delayNavigate()

				this.payOrder()
			},
			async payOrder() {
				//1.创建订单
				// 1.1 组织订单的信息对象
				const orderInfo = {
					// order_price: this.checkedGoodsAmount,  //订单价格
					order_price: 0.01, //订单价格
					consignee_addr: this.addstr, //地址
					goods: this.cart.filter(x => x.goods_state).map(x => ({
						goods_id: x.goods_id, //订单号
						goods_number: x.goods_number, //数量
						goods_price: x.goods_price //价格
					}))
				}
				// 1.2 发起请求创建订单
				const {
					data: res
				} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')

				// 1.3 得到服务器响应的“订单编号”  
				const orderNumber = res.message.order_number

				console.log(orderNumber)

				// 2. 订单预支付
				// 2.1 发起请求获取订单的支付信息
				const {
					data: res2
				} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {
					order_number: orderNumber
				})
				// 2.2 预付订单生成失败
				if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
				// 2.3 TODO 下面需要放开 得到订单支付相关的必要参数
				// const payInfo = res2.message.pay
				const payInfo = { //这里暂定为下面数据
					"timeStamp": "1525681145", //时间戳（秒）	前端或后端
					"nonceStr": "BkPggorBXZwPGXe3", //随机字符串	前端或后端 必须唯
					"package": "prepay_id=wx071619042918087bb4c1d3d72999385683", // 预支付订单 ID 由后端生成
					"signType": "MD5", //签名加密方式
					"paySign": "D1642DEEF1663C8012EDEB9297E1D516" //后端（用 API key 签名）	
				}

				console.log(payInfo)

				// 3. 发起微信支付
				// 3.1 调用 uni.requestPayment() 发起微信支付
				const [err, succ] = await uni.requestPayment(payInfo)
				// 3.2 未完成支付
				if (err) return uni.$showMsg('订单未支付！')
				// 3.3 完成了支付，进一步查询支付的结果
				const {data: res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder', {order_number: orderNumber})
				// 3.4 检测到订单未支付
				if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
				// 3.5 检测到订单支付完成
				uni.showToast({
					title: '支付完成！',
					icon: 'success'
				})


			},
			//延时导航到my页面
			delayNavigate() {
				this.seconds = 3
				this.showTips(this.seconds)
				this.timer = setInterval(() => {
					this.seconds--

					if (this.seconds <= 0) {
						clearInterval(this.timer)

						uni.switchTab({
							url: '/pages/my/my',
							success: () => {
								this.updateRedirectInfo({
									openType: 'switchTab',
									from: '/pages/cart/cart'
								})
							}
						})
						return
					}

					this.showTips(this.seconds)
				}, 1000)
			},
			// 展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: 'none',
					title: '请登录后在结算!' + n + ' 秒之后自动跳转到登录页',
					mask: true,
					duration: 1500
				})
			}

		}
	}
</script>

<style lang="scss">
	.my-settle-container {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 50px;
		display: flex;
		justify-content: space-between;
		align-items: center;
		background-color: white;
		font-size: 14px;
		padding-left: 5px;

		.radio {
			display: flex;
			align-items: center;
		}

		.amount-box {
			.amount {
				color: #C00000;
				font-weight: bold;
			}
		}

		.btn-settle {
			background-color: #C00000;
			height: 50px;
			color: white;
			line-height: 50px;
			padding: 0 10px;
			min-width: 100px;
			text-align: center;
		}
	}
</style>